nesdev.org

Mega Man X3 and no other CX4 game either had SRAM. The game is completely playabale until the end. The CX4 only supports up to 2MB of ROM data. You will have to create custom logic to bypass that. Check this: http://forums.nesdev.com/viewtopic.php?f=12&t=17395#p219981 P.S. I think this should b...

greetings everyone. recently when launched the ROM Mega Man X3 Zero Project 4.1 I decided to create a cartridge like this to play on the console using the real hardware (CX4) I managed with a little effort to run the game without any compatibility problem. it is even possible to finish the game with...

I have to admit, I'm curious why the flip flop on the pcb? To Fishers point, the correct way to integrate 3v parts is to level shift the addresslines down to 3v to protect the roms. The CX4, in effect, will upshift the datalines as it exits the CX4. I don't know if the CX4 datalines (on the roms si...

Neither I do... Unfortunately a cheap repro without proper level convertion damaged my old SNES. :-( I didn't want to be rude, but I think these kind of mods are a total lack of caution with older hardware, just to take it easy. I recognize that the modder has great skills, but really lacks in this...

greetings from Brazil. I came to share a repro cart that I researched a long time to be able to do it. This is a megaman x2 + x3 copy using a x2 donor. I will not share the ROM, but all information needed to do it is found in this forum. memory used was a 29l3211 https://preview.ibb.co/gym0do/Whats_...

hi everyone , i've made a homemade copy of x2+x3 multicart using a 29L3211 (3.3v) and a new adapter that i've created only for using in a x2 donor.



but for using this guy needs to edit hex o x2 ROM

works like a charm.

Even though the YI carts have the expansion solder pads for a bigger sram, if you follow the traces of the higher needed address (A15), it's not pinned to the GSU2. It's tied to the sram vcc IIRC..... oddly enough, I think what would be A16 does get pinned. I've wondered if that would work after al...

Why destroy a YI cart when the sd2snes now has full SFX compatibility? :wink: Seriously though, I wouldn't destroy another cart to do this. Just Google for a 128K sram sop 32, just make sure you get a 5V part. They can still be had relatively cheap and you'd be using a brand new part rather than ri...

Here is some update. I've been able to have the rom to boot on the cartridge in lorom mode. But when it load it shows interface register, immmediate register and immediate rom error. When I try to lunch the game, the capcom logo and intro music starts.. then nothing... I get black screen, then a pu...

hi everyone , im new here on the nesdev.com :D Im trying to make a Star Fox 2 repro on Yoshi island donor cart , but yoshi island cart has 256k sram , and star fox 2 need's 512k sram. :( the question is: is possible to use a 512k sram from other carts like Doom or RPG Tsukuru 2 (RPG MAKER 2) to upgr...